Based on this table which describes geological events, a statement that is most likely correct include the following: B. Event A represents volcanic eruption and Event B represents earthquakes.
What is a divergent boundary?Generally speaking, a divergent boundary is characterized by plates that are moving apart from one another, as well as basaltic volcanism and seafloor spreading. Also, a typical example of a divergent is the Mid-Atlantic Ridge.
In this context, we can reasonably infer and logically deduce that Event A is a geological event which most likely represents volcanic eruption because it occurred at both convergent and divergent boundary.
Furthermore, a convergent boundary simply refers to a region where lithosphere or crust is sinking into the mantle. Also, an example of a convergent is a region where subduction zones or collisions occur such as the west coast of South America.
In conclusion, a transform boundary simply refers to a boundary that is normally devoid of volcanism, but allows for the occurrence of earthquakes.
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What forces are acting on a meter stick?
Whenever the meter stick stood by itself, two forces were acting on it: some upward pressure of the fulcrum as well as the descending gravity force.
To demonstrate that the resultant force was zero when the metre stick has been in equilibrium, you must balance forces acting on it in the first section. To figure out the mass of the meter stick, you should balance the metre stick's weight against with a known weight inside the second section.
In the event that the ruler was balanced, the support which it is resting applies a force equal in strength to that of the weight's opposite force. Therefore, the ruler is being acted upon by its weight as well as the friction coefficient somewhere at support.
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S3o5 chemical compound
Answer:
Stainless SteelExplanation:
Stainless Steel Stainless Steel Stainless Steel Stainless Steel Stainless Steel Stainless SteelAnswer:
Sulfure 3
Oxygen 5
Explanation:
The S stands for Sulfure. And the stands for Oxygen. If you meant the name then its Trisulfur Pentoxide
hopefully that's what you meant.
From the information on the table, determine the Mass of
the alloy, Volume of alloy, then the density of the alloy. Be
sure to follow the rules of significant figures in calculations.
Mass of Alloy _____g Bolume of the alloy ______mL. Density of the alloy: ____g/mL.
Answer:
mass of alloy=165.36g
volume of alloy=21.2ml
density of alloy=7.8g/ml
Draw the structure for the product of the reaction between 2-butene and hydroiodic acid, HI.
The product of the reaction between 2-butene and hydroiodic acid (HI) is 2-iodobutane.
The reaction mechanism involves a nucleophilic substitution, where the iodine atom in HI acts as the nucleophile and attacks the carbon atom in the double bond of 2-butene. This results in the formation of a carbocation intermediate, which then undergoes a rearrangement to form 2-iodobutane. The overall reaction can be represented as follows: 2-butene + HI → 2-iodobutane + H2.Nucleophilic substitution is a type of chemical reaction in which a nucleophile (a molecule or ion with a lone pair of electrons) attacks an electron deficient species, known as an electrophile, to form a new chemical bond. In the process, the electrophile's original electron pair is replaced by the nucleophile. Nucleophilic substitution reactions can occur in a variety of ways, such as S N 1, S N 2, and S Ni (where i = 1, 2, or any other number).
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Where does the linkage between the -COOH group on one end of one molecule and the -NH2 group at the end of another molecule occur
The peptides amino acids form peptide linkages between -COOH and -NH2 groups in protein.
What do you mean by peptides?
Peptides are short chains of amino acids that are linked together by peptide bonds. They are found in all living organisms and play important roles in many biological processes, such as cell signaling, hormone production, and metabolism. Peptides can range in size from two to hundreds of amino acids and can be made up of different combinations of amino acids.
Peptide bonds are formed when the carboxyl group (COOH) of one amino acid reacts with the amino group (NH2) of another amino acid. This creates a peptide bond, which is a covalent bond between the two amino acids. As proteins are made up of many amino acids, this process of forming peptide bonds is what links the amino acids together to form a protein.
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What happens to the reactivity when we move from left to right in the periodic table?
The metallic qualities drop and the non-metal characteristics rise as we progress from left to right, which results in a decrease inside the reactivity of such elements.
Metal reactivity is influenced by their propensity to lose electrons. The valence electrons could be simply eliminated as the atomic size grows, resulting in the formation of positive ions. As we proceed down the periodic table, the atomic size of metals gets bigger. The propensity to acquire electrons determines how reactive non-metals are.
Metal fosters strong down groups and declines across intervals from left to right. Indicators of nonmetallic properties rise from left to right and fall down groupings. Nonmetal reactivity goes up groups as well as down groups, increasing from left to right.
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Consider the reaction H2 + I2 2HI for which K = 44.8 at a high temperature. If an equimolar mixture of reactants gives the concentration of the product to be 0.50 M at equilibrium, determine the equilibrium concentration of the hydrogen.
A) 1.1 * 10^–1 M
B) 7.5 * 10^–2 M
C) 3.7 *10^–2 M
D) 1.3 * 10^1 M
E) 5.6 * 10^–3 M
Equilibrium constant K= 44.8 for H₂ + I₂ → 2HI Equimolar reactants, HI = 0.50M, H₂ = 5.6×10⁻³ M. The correct option is e.
given equilibrium constant (K) and the equilibrium concentration of the product HI = 0.50M
balanced equation for the reaction
H₂ + I₂ → 2HI
K =[tex]\frac{HI^{2} }{[H_{2][I_{2}] } }[/tex]
K=44.8 and [HI]=0.50M
[H₂] = [tex]\frac{[HI]^{2} }{K}[/tex]
[H₂] =[tex]\frac{(0.50M)^{2} }{44.8}[/tex]
[H₂] ≈0.0056M
equilibrium concentration of hydrogen is 0.0056M sa per the given reaction.
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Identify one advantage to each of the following models of electron configuration: Dot structures Arrow and line diagrams Written electron configurations Type in your answer below.
Simple Lewis dot structures make it easy to see how many valence electrons are present in an atom. Valence electrons are shown as dots surrounding the atom that are organized in pairs in Lewis dot formations.
Electron spin direction is displayed using arrow and line diagrams, along with each orbital. The electron configuration of atoms is shown using arrow and line diagrams or orbital diagrams, which use boxes and arrows to indicate the different orbitals and the pairing arrangement of electrons. This model has the benefit of displaying each orbital as well as the electrons' spin polarity.
Written electron configurations are concise and also depict how the electrons are distributed throughout the sublevels. The number of electrons in a specific sublevel is indicated by superscripts in written electron configuration notation. Written electronic configuration has the advantage of being more compact due to the removal of boxes and arrows. It also displays how electrons are distributed among sublevels.
The arrangement of electrons within an atom's orbitals, shells, and subshells is known as electron configuration.
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Answer:
Dot structures make it easy to count electrons and they show the number of electrons in each electron shell.
Arrow and line diagrams show the spin of electrons and show every orbital.
Written configurations require minimal space and show the distribution of electrons between subshells.
Explanation:
correct on edg 2023
How do you make the balanced equation of making ammonia?
__ N² + __ H² → __ NH³
(with steps to solve)
Answer:
1, 3, 2
Explanation:
1 mole of N^2 so you have 2 N.
3 mole of H^2 so you have 6 H.
2 mole NH^3 so you have 2 N and 6 H
2N + 6H = 2N + 6H
(05.04 LC)
How many moles of sulfuric acid (H₂SO4) are needed to react completely with 6.8 moles of lithium hydroxide (LiOH)?
2LIOH + H₂SO4 → Li2SO4 + 2H₂O
O 3.4 mol H₂SO4
O 6.8 mol H₂SO4
O 10.2 mol H₂SO4
O 13.6 mol H₂SO4
3.4 mole of H₂SO₄ are needed to react completely with 6.8 moles of lithium hydroxide (LiOH).
Is lithium hydroxide harmful to humans?When breathed in, lithium hydroxide monohydrate can have an impact on you. Lithium Hydroxide Monohydrate is a HIGHLY CORROSIVE CHEMICAL, and contact with it can cause serious skin irritation, eye damage, and burning. Lithium Hydroxide Monohydrate inhaled can irritate the throat and nose.
From the stichiometry of the reaction: 2 LiOH + H2SO4 → Li2SO4 + 2H2O
It is evident that 2.0 moles of LiOH reacts with 1.0 mole of H2SO4 to produce 1.0 mole of Li2SO4 and 2.0 moles of H2O.
Using cross multiplication:
1.0 mole of H2SO4 reacts completely with → 2.0 moles of LiOH
x mole of H2SO4 are needed to react completely with → 6.8 moles of LiOH
since number of moles of H2SO4 = ( 1.0 x 6.8 ) / (2.0) = 3.4 mole of H2SO4.
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Why did the scientists only add earthworms to half of the pipes?
...
An annelid can regenerate to some extent after being split in half, and in some species, you may even get two worms. However, the common earthworm only regenerates from the tail end; Every time, the head end dies.
Can worms withstand being divided in half?The Washington Post reports that many earthworms can lose several segments from their head end and grow back, and that almost all worms can regrow their tails if they are amputated. However, for some worms, the likelihood of fully regenerating decreases with the number of segments removed.
What substance does the earthworm secrete to stabilize the tunnel walls?Coelomic fluid, which is secreted by many earthworms, makes it easier for them to move through the soil. This fluid forms a cement-like substance that lines the burrows of some burrowing species to prevent the walls from falling down.
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what happens to the speed of a sound wave from an underwater animal as the sound passes into the air above?
A. It stays the same
B. It falls to zero
C. It decreases
D. It increases
Classify the reaction in each of the following equations.
a. BaCl2 (aq) + K2CrO4 (aq) → BaCrO4 (s) + 2KCl(aq)
b. Si(s) + 2Cl2 (g) → SiCl4 (l)
Answer:
a) Double replacement
b) Synthesis
Explanation:
a) For A, we have two ionic reactants that form two ionic products, where the anion (or cation) is swapped. This is a characteristic of a double replacement reaction.
b) For B, two elements, this time two elements, react together to form one product that's unlike the reactants. This is a characteristic of a synthesis reaction.
select all that apply. please i will mark you brainliest.
Answer:
The 2nd option
at ph=0, the net charge on a polypeptide will be negative.
a. true
b. false
False. A polypeptide will have a negative net charge at ph=0.
A polypeptide is what?A peptide is a small, chemically bound chain of amino acids, usually between two and fifty amino acids (called peptide bonds). A polypeptide is a longer (51 or more amino acids) chain of connected amino acids. One or more polypeptides are used to create the proteins that are produced inside of cells.
What role does the polypeptide play?Polypeptides. Proteins are created by joining several amino acids together to form polypeptides. The coupling of two or so more polypeptides results in the formation of proteins, after which they are folded into the appropriate shape.
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what point is swift makihng in a modest proposel by discounting other people and more humane solutions
Making people aware of how terrible hunger and poverty are in contemporary society is the aim of A Modest Proposal.
These kinds of problems are still important in today's culture and are not only confined to Swift's day. Jonathan Swift wrote an article titled "A Modest Proposal" that discusses hunger and poverty. Swift created it in 1729 as a means of drawing attention to how terrible these issues were.Most likely, this idea did seem excessive to many of his contemporaries, especially if they failed to grasp the text's satirical and sarcastic tone. Swift is trying to make a point about how things between the rich English and the poor Irish have gotten out of hand.
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Can you describe , using full sentence , a car trip : o include distance , speed ,velocity and acceleration
Answer: Distance : The length of the space between two points.
Speed:The rate at which someone or something moves or operates or is able to move or operate.
Velocity: Velocity is the directional speed of an object in motion as an indication of its rate of change in position as observed from a particular frame of reference and as measured by a particular standard of time.
Accerelation: Acceleration is the rate of change of the velocity of an object with respect to time. Accelerations are vector quantities. The orientation of an object's acceleration is given by the orientation of the net force acting on that object.
Explanation: Hope it helps!
A 70g chunk of metal at 180C was dropped in a bucket containing 400g of water at 25C. The final temperature of the mixture was 28C. What is the specific heat capacity of the metal
Thus, the metal has a mhm specific heat capacity of 2.472 Joel program degrees Celsius.
To calculate the temperature change (T), subtract the end temperature from the initial temperature. Multiply the temperature change by the sample's mass. Share the product's energy and heat output. The equation is C = Q / (T m). The amount of heat energy per unit mass needed to raise the temperature by one degree Celsius is known as the specific heat. The form given below, where c is the specific heat, is typically used to express the relationship between heat and temperature change. Let S represent the water's specific heat capacity. Consequently, the combined temperature of 50g of water at 20°C and 50g of water.
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The limiting reactant, O2, forms 2.7 mol AI2O3. What mass of AI2O3 forms, knowing the molar mass of AI2O3 is 102 g/mol?
The limiting reactant, O₂, forms 2.7 mole Al₂O₃. Therefore, the mass of Al₂O₃ is 280 g.
What is mole ?The term mole (M) is defined as the amount of substance in a system which include as many elementary entities as there are atoms present in it. It is denoted by the symbol “mol”. The word mole is coming from the Latin word moles, which means “a mass”.
Molar Mass of Al₂O₃ = 101.96 g/mol
2.7 mole Al₂O₃ 101.96 g
------------------------ x -------------------
X 1 mole
= 280 g Al₂O₃
Thus, The limiting reactant, O₂, forms 2.7 mole Al₂O₃. Therefore, the mass of Al₂O₃ is 280 g.
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calculate the mass of .00566 mol of germanium, show work.
Predict the immediate effect of the following changes on the observed cell voltage, E.
H2(g) + PbCl2(s) <–> Pb(s) + 2HCl (aq)
Delta H standard rxn > 0
Match
a) Dissolve NaOH into solution
b) Increase the temperature
c) Increase the amount of PbCl2
d) Dilute the solution by adding H2O
i) Increased E
ii) Decreased E
iii) No change in E
Dissolve NaOH into the Solution will - Increased E
Increase the temperature - Increased E
Increase the amount of [tex]PbCl_{2}[/tex] - No change in E
Dilute the solution by adding [tex]H_{2}O[/tex] - Increased E
E= Voltage or the electromotive force generated in the cell
Dissolving NaOH will increase the conductivity and number of ions in the cell and Increases E . Adding water also increases the presence of hydrogen and hydroxide ions in the solution and Increases E.
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Please help, would be greatly appreciated!
According to the stoichiometry of the given chemical equation 102.03 g of Al₂O₃ is formed from 54 g of aluminium.
What is stoichiometry?It is the determination of proportions of elements or compounds in a chemical reaction. The related relations are based on law of conservation of mass and law of combining weights and volumes.
Stoichiometry is used in quantitative analysis for measuring concentrations of substances present in the sample. As per stoichiometry of the given chemical equation, 107.92 g aluminium gives 203.92 g Al₂O₃, thus 54 g aluminium will give 54×203.92/107.92=102.03 g.
Thus, 102.03 g of Al₂O₃ is formed from 54 g of aluminium.
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Analysis of a 10.150 grams sample of a compound known to contain only phosphorus and oxygen indicates a phosphorus content of 4.433 grams. What is the empirical formula of this compound
A 10.150 grams sample of a compound containing only phosphorus and oxygen which indicates a phosphorus content of 4.433 grams has the empirical formula P₂O₅.
An Empirical formula is defined as the simplest whole number ratio of different atoms present in the molecule of a compound.
given,
mass of the unknown compound= 10.150 g
mass of phosphorus= 4.433 g
therefore, mass of oxygen
=mass of the unknown compound - mass of phosphorus
=10.150-4.433 g
=5.717 g
we know that
molar mass of oxygen = 16 g/mol
molar mass of phosphorus = 31 g/mol
number of moles of oxygen
=mass/molar mass
=5.717g/16gmol⁻¹
=0.357
number of moles of phosphorus
= mass/molar mass
= 4.433g/31gmol⁻¹
=0.143
Now, we will divide the moles by the smallest number of moles (0.143)
O= 0.357 / 0.143 =2.49≈ 2.5
P= 0.143 /0.143 = 1
now, we will multiply both numbers by 2 to get the simplest whole number ratio
O= 2.5×2= 5
P= 1×2= 2
Thus, the empirical formula is P₂O₅.
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N2+ 3H2= 2NH3+ energy Design criteria are the desired features of a design. Identify at least two criteria for the design of the ammonia-making process. Explain why these criteria are important.
Efficiency and safety are important criteria for the design of ammonia production processes, as they consume less energy and reliably produce large amounts of ammonia with minimal risk of accidents.
What are Design Criteria?Design criteria are specific characteristics or requirements that a design must meet in order to be successful. They provide clear and measurable criteria for evaluating designs, ensuring that the final product meets the needs and expectations of customers or users. Design criteria include not only technical specifications such as size, weight and materials, but also performance requirements such as safety, efficiency and durability. It can also include cost-related criteria such as manufacturing cost, ease of maintenance, and environmental aspects. The process of identifying and defining design criteria is an important step in the design process as it helps ensure that the final product meets user needs and is fit for purpose. This is important because as much of the reactants (nitrogen and hydrogen) as possible are converted to ammonia, thereby maximizing the yield of the process. This is important to make the process economical and produce large amounts of ammonia.
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7.92g of FeSO4 • 6H2O is equal to how many molecules?
7.92g of FeSO4 • 6H2O is equal to 1.55 x 10^23 molecules.
What is molecules?Molecules are the smallest units of matter that can exist by themselves. They are composed of two or more atoms that are held together by chemical bonds. Molecules can be found in the air we breathe, the water we drink, and the food we eat. They can also be found in living organisms, like plants and animals. Molecules can be made of a variety of different atoms, such as oxygen, carbon, nitrogen, and hydrogen. They also come in different shapes and sizes, depending on the types of atoms they are composed of.
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Show all your work and make sure to label all the numbers with the correct units if you do, I will give you brainly:
A: A sample of sulfuric acid has a mass of 15.0 g. How many molecules are in this sample?
B: How many moles of sulfuric acid are present in 45 g of this sample?
C: How much would a .750 mole sample of Ammonium sulfate weigh?
D: What is the mass percent of hydrogen in this sample?
A student places a sample of a pure metal in a crucible and heats it strongly in air. Data from the experiment are given in the table above. The final mass was determined after the sample was cooled to room temperature. Which of the following statements related to the experiment is correct? (See attached table)
a.) The mass of the sample decreased, so physical changes occurred as the metal first melted and then boiled out of the crucible.
b.) The mass of the sample increased, so a chemical change occurred when bonds formed between the metal and another substance.
c.) There was nothing for the metal to react with, so only a physical change could have occurred.
d.) The sample was only heated, so neither a physical nor a chemical change occurred.
The correct answer is option A. The mass of the sample decreased, so physical changes occurred as the metal first melted and then boiled out of the crucible. The decrease in mass is a result of the metal melting and then vaporizing as it is heated.
What is physical changes?Physical changes refer to changes in the physical properties of a substance without altering its chemical composition. Examples of physical changes include melting, freezing, condensation, vaporization, sublimation, and physical state changes. Physical changes occur when a substance changes from one state of matter to another without a chemical reaction taking place.
This is an example of a physical change, as the material is changed from a solid to a liquid and then to a gas, but its chemical composition remains the same.
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For each of the following molecules, would you expect greater solubility in water or in hexane?
a. toluene
b. sucrose (table sugar)
c. isobutene
d. ethylene glycol
Answer:
a
Explanation:
boiling point of 111ºC and hexane, with a boiling point of 69ºC, is 42ºC, making these two substances most easily separated
A 467. 8 ng sample of unknown radioactive substance was placed in storage and its mass measured periodically after 47 days the amount of radioactive substance had decreased 58. 48 ng how many half-lives of the non-radioactive substance have occurred
The amount of radioactive substance has decreased from 467.8 ng to 58.48 ng after 47 days, so 2.5 half-lives have occurred.
A radioactive isotope's half-life is the amount of time it takes for one half of the radioactive isotope to decay. A specific radioactive isotope's half-life is constant; it is unaffected by conditions and is independent of the initial amount of that isotope.
Half-life = 47/2.5 = 18.8 days
Decrease in Radioactive Substance = 467.8 - 58.48 = 409.32
Half-life amount = 409.32/2.5 = 163.728
Number of half-lives = 409.32/163.728 = 2.5
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Balance the following double displacement reaction and determine the coefficients of all of the reactants and products.
___ BaCl2 +___ Na2CO3 --> ___ BaCO3 + ___ NaCl
This double displacement reaction and the coefficients of all the reactants and products in this balanced chemical reaction is Bacl₂ + Na₂CO₃ = BaCO₃ + 2Nacl.
What is a double displacement reaction?A double displacement reaction is a particular type of reaction in which two reactants swap ions to produce two new molecules. Water-soluble ionic compounds interact with one another in a number of double displacement processes.
What is the meaning of coefficients?Coefficients are the numbers or expressions put in front of a chemical symbol or formula to balance chemical equations. It provides information on the number of atoms or molecules of the drug or chemical that are a part of the reaction.
What is a chemical reaction?When two or more compounds come into touch with one another and create a new substance, the process is known as a chemical reaction (s). Reactants or reagents are the name(s) for the substance(s) or substances that are initially incorporated into the chemical process. Chemical reactions typically involve a chemical change and produce one or more products, which typically differ from the reactants in some ways.
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